Upright tubular boiler



mwws s 7 (No Model.)

F. L. WATEROUS. UPRIGHT TUBULAR BOILER.

No. 489,051. 1 Patented Jan. 3, Q1893."

Q UNITED STATES PATENT OFFICE.

FREDERICK L. \VATEROUS, OF SOUTH ST. IAUL, MINNESOTA.

UPRIGHT TUBULAR BOILER.

SPECIFICATION forming part of Letters Patent No. 489,051, dated January 3, 1893.

Application filed April 14:, 1892.

To all whom it may concern:

Be'it known that I, FREDERICK L. WATER- OUs, of South St. Paul, in the county of Dakota and State of Minnesota, have invented certain new and useful Improvements in Upright Tubular boilers; and I do hereby declare that the following is a full, clear, and ex- .act description of the invention, which will onable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, and

'to the letters of reference marked thereon,

connected by a pipe having a compression valve or other suitable device with thelower portion of the boiler, and of certain other peculiarities of construction and arrangement hereinafter specifically set forth and pointed out in the claims.

In the accompanying drawings like letters designate the same parts in both figures.

Figure l is a vertical medial section of a ooiler embodying my improvements, and Fig. 2 is a similar section on an enlarged scale of a suitable form, of compression valve for use in connection with my improvements.

A represents the shell, 13 the upper head or fine sheet, C the lower head or flue sheet, D D the tubes or fiues secured at the ends in the usual manner in said flue sheets, and E the fire box of an upright tubular boiler, which maybe otthe usual or any suitable form and construction.

F is a horizontal diaphragm or partition plate, located a short distance below the upper line sheet 13, and inclosing therewith around the upper ends of the tubes D D, a

water and steam tight chamber below which said tubes pass through the usual steam space and thus superhcat the steam when the boiler is in operation.

To ali'ord alarger water space between the Serial 110,429,109. (No model.)

fine sheet l; and partition-F, to insure at all times contact of water with the upper ends of the tubes where theyjoin said flue sheet, and to relieve the boiler of strain due to any unequal expansion and contraction of said fine sheet, and the shell A. to which it is attached, I prefer to turn said flue sheet upwardly and then outwardly around its edge, so as to form between it and the shell, an. annular space extending above that portion of the line sheet to which the tubes are attached.

G is a feed pipe through which water is forced into said chamber, and II is apipe leading out of said chamber into the leg or lower portion of the boiler. This pipe ll provided with a compression valve i, shown in detail in Fig. 2, which opens outwardly from said chamber against a spring or other suitable device, by which the passage of water from said chamber is suliicinntly opposed or retarded to keep said chamber constantly filled, or hold the water therein in contact with the upper flue sheet around the tubes.

In operation, water is pumped or forced through the pipe G, into said chamber, and filling the same above the upper ends of the tubes, is forced therefrom against the resistance of the compression valve I, through pipe II, into the lower portion of the boiler; the valve I being properly regulated to hold the water in said chamber above the upper ends of the tubes or in contact with the flue sheet B around said tubes. \Vater being thus kept constantly in contact with the upper ends of the tubes and upper line sheet, prevents their becoming over heated and the joints from be coming loose and leaky. In passing through said chamber in contact with the tubes, the water is incidentally heated before it passes into the boiler, and the device thus serves to heat the feed water, as well as to preserve the upper ends of the tubes, the upper flue sheet and the joints between them.

I claim:

1. In an upright boiler, a water chamber around the upper ends of the tubes, and a connection between said water chamber and the lower portion of the boiler, provided with a compression valve whereby water in said chamber is held in contact with the upper flue sheet, substantially as and for the purposes sct forth.

2. In an uprighttubular boiler, a water chamber inclosed around the upper ends of the tubes between the upper flue sheet and a diaphragm located a short, distance below it,

and a Connection leading out of said chamber below said flue sheet into the lower portion t of the boiler and provided with a compression valve by which water in said chamber is held -in contact with said flue sheet, substantially [0' as and for the purposes set forth.

3; In an upright tubular boiler, the combi-- nation with the shell, of the upper flue sheet bent upwardly and outwardly at its edge, which is joined to the shell and forms there- .with an annular space above the upper ends boiler and constructed and arranged to hold the water in said chamberin contact with said flue sheet around the upper ends of the tubes, substantially as and for the purposes set forth.

,4. In an upright boiler, a water chamber inclosed around the upper ends of the tubes, and a connection between said chamber and the lower portion'of the boilexgprovided with a back pressure or retarding device, whereby water is caused to rise in said chamber and is held in contact with the upper fiueshect around'the upper endsof'said tubes, substantially as' and for the purposes set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

FREDERICK L. XVATEROUS. Witnesses:

W. I-IoHM, CHAS. N. BELL. 

